From c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 Mon Sep 17 00:00:00 2001 From: Torsten Schenk Date: Mon, 24 Jan 2011 18:45:30 +0100 Subject: [PATCH] ALSA: usb/6fire - Driver for TerraTec DMX 6Fire USB What is working: Everything except SPDIF - Hardware Master volume - PCM 44-192kHz@24 bits, 6 channels out, 4 channels in (analog) - MIDI in/out - firmware loading after cold start - phono/line switching Signed-off-by: Torsten Schenk Signed-off-by: Takashi Iwai --- sound/usb/6fire/Makefile | 3 + sound/usb/6fire/chip.c | 232 +++++++++++++++ sound/usb/6fire/chip.h | 32 +++ sound/usb/6fire/comm.c | 176 ++++++++++++ sound/usb/6fire/comm.h | 44 +++ sound/usb/6fire/common.h | 30 ++ sound/usb/6fire/control.c | 275 ++++++++++++++++++ sound/usb/6fire/control.h | 37 +++ sound/usb/6fire/firmware.c | 426 ++++++++++++++++++++++++++++ sound/usb/6fire/firmware.h | 27 ++ sound/usb/6fire/midi.c | 203 +++++++++++++ sound/usb/6fire/midi.h | 46 +++ sound/usb/6fire/pcm.c | 689 +++++++++++++++++++++++++++++++++++++++++++++ sound/usb/6fire/pcm.h | 76 +++++ sound/usb/Kconfig | 16 ++ sound/usb/Makefile | 2 +- 16 files changed, 2313 insertions(+), 1 deletion(-) create mode 100644 sound/usb/6fire/Makefile create mode 100644 sound/usb/6fire/chip.c create mode 100644 sound/usb/6fire/chip.h create mode 100644 sound/usb/6fire/comm.c create mode 100644 sound/usb/6fire/comm.h create mode 100644 sound/usb/6fire/common.h create mode 100644 sound/usb/6fire/control.c create mode 100644 sound/usb/6fire/control.h create mode 100644 sound/usb/6fire/firmware.c create mode 100644 sound/usb/6fire/firmware.h create mode 100644 sound/usb/6fire/midi.c create mode 100644 sound/usb/6fire/midi.h create mode 100644 sound/usb/6fire/pcm.c create mode 100644 sound/usb/6fire/pcm.h diff --git a/sound/usb/6fire/Makefile b/sound/usb/6fire/Makefile new file mode 100644 index 0000000..dfce6ec --- /dev/null +++ b/sound/usb/6fire/Makefile @@ -0,0 +1,3 @@ +snd-usb-6fire-objs += chip.o comm.o midi.o control.o firmware.o pcm.o +obj-$(CONFIG_SND_USB_6FIRE) += snd-usb-6fire.o + diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c new file mode 100644 index 0000000..c7dca7b --- /dev/null +++ b/sound/usb/6fire/chip.c @@ -0,0 +1,232 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Main routines and module definitions. + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "chip.h" +#include "firmware.h" +#include "pcm.h" +#include "control.h" +#include "comm.h" +#include "midi.h" + +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Torsten Schenk "); +MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver, version 0.3.0"); +MODULE_LICENSE("GPL v2"); +MODULE_SUPPORTED_DEVICE("{{TerraTec, DMX 6Fire USB}}"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ +static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; +static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the 6fire sound device"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the 6fire sound device."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable the 6fire sound device."); + +static DEFINE_MUTEX(register_mutex); + +static void usb6fire_chip_abort(struct sfire_chip *chip) +{ + if (chip) { + if (chip->pcm) + usb6fire_pcm_abort(chip); + if (chip->midi) + usb6fire_midi_abort(chip); + if (chip->comm) + usb6fire_comm_abort(chip); + if (chip->control) + usb6fire_control_abort(chip); + if (chip->card) { + snd_card_disconnect(chip->card); + snd_card_free_when_closed(chip->card); + chip->card = NULL; + } + } +} + +static void usb6fire_chip_destroy(struct sfire_chip *chip) +{ + if (chip) { + if (chip->pcm) + usb6fire_pcm_destroy(chip); + if (chip->midi) + usb6fire_midi_destroy(chip); + if (chip->comm) + usb6fire_comm_destroy(chip); + if (chip->control) + usb6fire_control_destroy(chip); + if (chip->card) + snd_card_free(chip->card); + } +} + +static int __devinit usb6fire_chip_probe(struct usb_interface *intf, + const struct usb_device_id *usb_id) +{ + int ret; + int i; + struct sfire_chip *chip = NULL; + struct usb_device *device = interface_to_usbdev(intf); + int regidx = -1; /* index in module parameter array */ + struct snd_card *card = NULL; + + /* look if we already serve this card and return if so */ + mutex_lock(®ister_mutex); + for (i = 0; i < SNDRV_CARDS; i++) { + if (devices[i] == device) { + if (chips[i]) + chips[i]->intf_count++; + usb_set_intfdata(intf, chips[i]); + mutex_unlock(®ister_mutex); + return 0; + } else if (regidx < 0) + regidx = i; + } + if (regidx < 0) { + mutex_unlock(®ister_mutex); + snd_printk(KERN_ERR PREFIX "too many cards registered.\n"); + return -ENODEV; + } + devices[regidx] = device; + mutex_unlock(®ister_mutex); + + /* check, if firmware is present on device, upload it if not */ + ret = usb6fire_fw_init(intf); + if (ret < 0) + return ret; + else if (ret == FW_NOT_READY) /* firmware update performed */ + return 0; + + /* if we are here, card can be registered in alsa. */ + if (usb_set_interface(device, 0, 0) != 0) { + snd_printk(KERN_ERR PREFIX "can't set first interface.\n"); + return -EIO; + } + ret = snd_card_create(index[regidx], id[regidx], THIS_MODULE, + sizeof(struct sfire_chip), &card); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "cannot create alsa card.\n"); + return ret; + } + strcpy(card->driver, "6FireUSB"); + strcpy(card->shortname, "TerraTec DMX6FireUSB"); + sprintf(card->longname, "%s at %d:%d", card->shortname, + device->bus->busnum, device->devnum); + snd_card_set_dev(card, &intf->dev); + + chip = card->private_data; + chips[regidx] = chip; + chip->dev = device; + chip->regidx = regidx; + chip->intf_count = 1; + chip->card = card; + + ret = usb6fire_comm_init(chip); + if (ret < 0) { + usb6fire_chip_destroy(chip); + return ret; + } + + ret = usb6fire_midi_init(chip); + if (ret < 0) { + usb6fire_chip_destroy(chip); + return ret; + } + + ret = usb6fire_pcm_init(chip); + if (ret < 0) { + usb6fire_chip_destroy(chip); + return ret; + } + + ret = usb6fire_control_init(chip); + if (ret < 0) { + usb6fire_chip_destroy(chip); + return ret; + } + + ret = snd_card_register(card); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "cannot register card."); + usb6fire_chip_destroy(chip); + return ret; + } + usb_set_intfdata(intf, chip); + return 0; +} + +static void usb6fire_chip_disconnect(struct usb_interface *intf) +{ + struct sfire_chip *chip; + struct snd_card *card; + + chip = usb_get_intfdata(intf); + if (chip) { /* if !chip, fw upload has been performed */ + card = chip->card; + chip->intf_count--; + if (!chip->intf_count) { + mutex_lock(®ister_mutex); + devices[chip->regidx] = NULL; + chips[chip->regidx] = NULL; + mutex_unlock(®ister_mutex); + + chip->shutdown = true; + usb6fire_chip_abort(chip); + usb6fire_chip_destroy(chip); + } + } +} + +static struct usb_device_id device_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0ccd, + .idProduct = 0x0080 + }, + {} +}; + +MODULE_DEVICE_TABLE(usb, device_table); + +static struct usb_driver driver = { + .name = "snd-usb-6fire", + .probe = usb6fire_chip_probe, + .disconnect = usb6fire_chip_disconnect, + .id_table = device_table, +}; + +static int __init usb6fire_chip_init(void) +{ + return usb_register(&driver); +} + +static void __exit usb6fire_chip_cleanup(void) +{ + usb_deregister(&driver); +} + +module_init(usb6fire_chip_init); +module_exit(usb6fire_chip_cleanup); diff --git a/sound/usb/6fire/chip.h b/sound/usb/6fire/chip.h new file mode 100644 index 0000000..d11e5cb --- /dev/null +++ b/sound/usb/6fire/chip.h @@ -0,0 +1,32 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef USB6FIRE_CHIP_H +#define USB6FIRE_CHIP_H + +#include "common.h" + +struct sfire_chip { + struct usb_device *dev; + struct snd_card *card; + int intf_count; /* number of registered interfaces */ + int regidx; /* index in module parameter arrays */ + bool shutdown; + + struct midi_runtime *midi; + struct pcm_runtime *pcm; + struct control_runtime *control; + struct comm_runtime *comm; +}; +#endif /* USB6FIRE_CHIP_H */ + diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c new file mode 100644 index 0000000..c994daa --- /dev/null +++ b/sound/usb/6fire/comm.c @@ -0,0 +1,176 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Device communications + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "comm.h" +#include "chip.h" +#include "midi.h" + +enum { + COMM_EP = 1, + COMM_FPGA_EP = 2 +}; + +static void usb6fire_comm_init_urb(struct comm_runtime *rt, struct urb *urb, + u8 *buffer, void *context, void(*handler)(struct urb *urb)) +{ + usb_init_urb(urb); + urb->transfer_buffer = buffer; + urb->pipe = usb_sndintpipe(rt->chip->dev, COMM_EP); + urb->complete = handler; + urb->context = context; + urb->interval = 1; + urb->dev = rt->chip->dev; +} + +static void usb6fire_comm_receiver_handler(struct urb *urb) +{ + struct comm_runtime *rt = urb->context; + struct midi_runtime *midi_rt = rt->chip->midi; + + if (!urb->status) { + if (rt->receiver_buffer[0] == 0x10) /* midi in event */ + if (midi_rt) + midi_rt->in_received(midi_rt, + rt->receiver_buffer + 2, + rt->receiver_buffer[1]); + } + + if (!rt->chip->shutdown) { + urb->status = 0; + urb->actual_length = 0; + if (usb_submit_urb(urb, GFP_ATOMIC) < 0) + snd_printk(KERN_WARNING PREFIX + "comm data receiver aborted.\n"); + } +} + +static void usb6fire_comm_init_buffer(u8 *buffer, u8 id, u8 request, + u8 reg, u8 vl, u8 vh) +{ + buffer[0] = 0x01; + buffer[2] = request; + buffer[3] = id; + switch (request) { + case 0x02: + buffer[1] = 0x05; /* length (starting at buffer[2]) */ + buffer[4] = reg; + buffer[5] = vl; + buffer[6] = vh; + break; + + case 0x12: + buffer[1] = 0x0b; /* length (starting at buffer[2]) */ + buffer[4] = 0x00; + buffer[5] = 0x18; + buffer[6] = 0x05; + buffer[7] = 0x00; + buffer[8] = 0x01; + buffer[9] = 0x00; + buffer[10] = 0x9e; + buffer[11] = reg; + buffer[12] = vl; + break; + + case 0x20: + case 0x21: + case 0x22: + buffer[1] = 0x04; + buffer[4] = reg; + buffer[5] = vl; + break; + } +} + +static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev) +{ + int ret; + int actual_len; + + ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, COMM_EP), + buffer, buffer[1] + 2, &actual_len, HZ); + if (ret < 0) + return ret; + else if (actual_len != buffer[1] + 2) + return -EIO; + return 0; +} + +static int usb6fire_comm_write8(struct comm_runtime *rt, u8 request, + u8 reg, u8 value) +{ + u8 buffer[13]; /* 13: maximum length of message */ + + usb6fire_comm_init_buffer(buffer, 0x00, request, reg, value, 0x00); + return usb6fire_comm_send_buffer(buffer, rt->chip->dev); +} + +static int usb6fire_comm_write16(struct comm_runtime *rt, u8 request, + u8 reg, u8 vl, u8 vh) +{ + u8 buffer[13]; /* 13: maximum length of message */ + + usb6fire_comm_init_buffer(buffer, 0x00, request, reg, vl, vh); + return usb6fire_comm_send_buffer(buffer, rt->chip->dev); +} + +int __devinit usb6fire_comm_init(struct sfire_chip *chip) +{ + struct comm_runtime *rt = kzalloc(sizeof(struct comm_runtime), + GFP_KERNEL); + struct urb *urb = &rt->receiver; + int ret; + + if (!rt) + return -ENOMEM; + + rt->serial = 1; + rt->chip = chip; + usb_init_urb(urb); + rt->init_urb = usb6fire_comm_init_urb; + rt->write8 = usb6fire_comm_write8; + rt->write16 = usb6fire_comm_write16; + + /* submit an urb that receives communication data from device */ + urb->transfer_buffer = rt->receiver_buffer; + urb->transfer_buffer_length = COMM_RECEIVER_BUFSIZE; + urb->pipe = usb_rcvintpipe(chip->dev, COMM_EP); + urb->dev = chip->dev; + urb->complete = usb6fire_comm_receiver_handler; + urb->context = rt; + urb->interval = 1; + ret = usb_submit_urb(urb, GFP_KERNEL); + if (ret < 0) { + kfree(rt); + snd_printk(KERN_ERR PREFIX "cannot create comm data receiver."); + return ret; + } + chip->comm = rt; + return 0; +} + +void usb6fire_comm_abort(struct sfire_chip *chip) +{ + struct comm_runtime *rt = chip->comm; + + if (rt) + usb_poison_urb(&rt->receiver); +} + +void usb6fire_comm_destroy(struct sfire_chip *chip) +{ + kfree(chip->comm); + chip->comm = NULL; +} diff --git a/sound/usb/6fire/comm.h b/sound/usb/6fire/comm.h new file mode 100644 index 0000000..edc5dc8 --- /dev/null +++ b/sound/usb/6fire/comm.h @@ -0,0 +1,44 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef USB6FIRE_COMM_H +#define USB6FIRE_COMM_H + +#include "common.h" + +enum /* settings for comm */ +{ + COMM_RECEIVER_BUFSIZE = 64, +}; + +struct comm_runtime { + struct sfire_chip *chip; + + struct urb receiver; + u8 receiver_buffer[COMM_RECEIVER_BUFSIZE]; + + u8 serial; /* urb serial */ + + void (*init_urb)(struct comm_runtime *rt, struct urb *urb, u8 *buffer, + void *context, void(*handler)(struct urb *urb)); + /* writes control data to the device */ + int (*write8)(struct comm_runtime *rt, u8 request, u8 reg, u8 value); + int (*write16)(struct comm_runtime *rt, u8 request, u8 reg, + u8 vh, u8 vl); +}; + +int __devinit usb6fire_comm_init(struct sfire_chip *chip); +void usb6fire_comm_abort(struct sfire_chip *chip); +void usb6fire_comm_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_COMM_H */ + diff --git a/sound/usb/6fire/common.h b/sound/usb/6fire/common.h new file mode 100644 index 0000000..7dbeb4a --- /dev/null +++ b/sound/usb/6fire/common.h @@ -0,0 +1,30 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef USB6FIRE_COMMON_H +#define USB6FIRE_COMMON_H + +#include +#include +#include + +#define PREFIX "6fire: " + +struct sfire_chip; +struct midi_runtime; +struct pcm_runtime; +struct control_runtime; +struct comm_runtime; +#endif /* USB6FIRE_COMMON_H */ + diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c new file mode 100644 index 0000000..2484635 --- /dev/null +++ b/sound/usb/6fire/control.c @@ -0,0 +1,275 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Mixer control + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include + +#include "control.h" +#include "comm.h" +#include "chip.h" + +static char *opt_coax_texts[2] = { "Optical", "Coax" }; +static char *line_phono_texts[2] = { "Line", "Phono" }; + +/* + * calculated with $value\[i\] = 128 \cdot sqrt[3]{\frac{i}{128}}$ + * this is done because the linear values cause rapid degredation + * of volume in the uppermost region. + */ +static const u8 log_volume_table[128] = { + 0x00, 0x19, 0x20, 0x24, 0x28, 0x2b, 0x2e, 0x30, 0x32, 0x34, + 0x36, 0x38, 0x3a, 0x3b, 0x3d, 0x3e, 0x40, 0x41, 0x42, 0x43, + 0x44, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, + 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x53, 0x54, 0x55, 0x56, + 0x56, 0x57, 0x58, 0x58, 0x59, 0x5a, 0x5b, 0x5b, 0x5c, 0x5c, + 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x60, 0x61, 0x61, 0x62, 0x62, + 0x63, 0x63, 0x64, 0x65, 0x65, 0x66, 0x66, 0x67, 0x67, 0x68, + 0x68, 0x69, 0x69, 0x6a, 0x6a, 0x6b, 0x6b, 0x6c, 0x6c, 0x6c, + 0x6d, 0x6d, 0x6e, 0x6e, 0x6f, 0x6f, 0x70, 0x70, 0x70, 0x71, + 0x71, 0x72, 0x72, 0x73, 0x73, 0x73, 0x74, 0x74, 0x75, 0x75, + 0x75, 0x76, 0x76, 0x77, 0x77, 0x77, 0x78, 0x78, 0x78, 0x79, + 0x79, 0x7a, 0x7a, 0x7a, 0x7b, 0x7b, 0x7b, 0x7c, 0x7c, 0x7c, + 0x7d, 0x7d, 0x7d, 0x7e, 0x7e, 0x7e, 0x7f, 0x7f }; + +/* + * data that needs to be sent to device. sets up card internal stuff. + * values dumped from windows driver and filtered by trial'n'error. + */ +static const struct { + u8 type; + u8 reg; + u8 value; +} +init_data[] = { + { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 }, + { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 }, + { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 }, + { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 }, + { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 }, + { 0x12, 0x0d, 0x78 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 }, + { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 }, + { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 }, + { 0 } /* TERMINATING ENTRY */ +}; + +static void usb6fire_control_master_vol_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + /* set volume */ + comm_rt->write8(comm_rt, 0x12, 0x0f, 0x7f - + log_volume_table[rt->master_vol]); + /* unmute */ + comm_rt->write8(comm_rt, 0x12, 0x0e, 0x00); + } +} + +static void usb6fire_control_line_phono_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch); + comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch); + } +} + +static void usb6fire_control_opt_coax_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch); + comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch); + } +} + +static int usb6fire_control_master_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 127; + return 0; +} + +static int usb6fire_control_master_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + if (rt->master_vol != ucontrol->value.integer.value[0]) { + rt->master_vol = ucontrol->value.integer.value[0]; + usb6fire_control_master_vol_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_master_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->master_vol; + return 0; +} + +static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = 2; + if (uinfo->value.enumerated.item > 1) + uinfo->value.enumerated.item = 1; + strcpy(uinfo->value.enumerated.name, + line_phono_texts[uinfo->value.enumerated.item]); + return 0; +} + +static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { + rt->line_phono_switch = ucontrol->value.integer.value[0]; + usb6fire_control_line_phono_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->line_phono_switch; + return 0; +} + +static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = 2; + if (uinfo->value.enumerated.item > 1) + uinfo->value.enumerated.item = 1; + strcpy(uinfo->value.enumerated.name, + opt_coax_texts[uinfo->value.enumerated.item]); + return 0; +} + +static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { + rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; + usb6fire_control_opt_coax_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; + return 0; +} + +static struct __devinitdata snd_kcontrol_new elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Master Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_master_vol_info, + .get = usb6fire_control_master_vol_get, + .put = usb6fire_control_master_vol_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Line/Phono Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_line_phono_info, + .get = usb6fire_control_line_phono_get, + .put = usb6fire_control_line_phono_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Opt/Coax Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_opt_coax_info, + .get = usb6fire_control_opt_coax_get, + .put = usb6fire_control_opt_coax_put + }, + {} +}; + +int __devinit usb6fire_control_init(struct sfire_chip *chip) +{ + int i; + int ret; + struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), + GFP_KERNEL); + struct comm_runtime *comm_rt = chip->comm; + + if (!rt) + return -ENOMEM; + + rt->chip = chip; + + i = 0; + while (init_data[i].type) { + comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, + init_data[i].value); + i++; + } + + usb6fire_control_opt_coax_update(rt); + usb6fire_control_line_phono_update(rt); + usb6fire_control_master_vol_update(rt); + + i = 0; + while (elements[i].name) { + ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); + if (ret < 0) { + kfree(rt); + snd_printk(KERN_ERR PREFIX "cannot add control.\n"); + return ret; + } + i++; + } + + chip->control = rt; + return 0; +} + +void usb6fire_control_abort(struct sfire_chip *chip) +{} + +void usb6fire_control_destroy(struct sfire_chip *chip) +{ + kfree(chip->control); + chip->control = NULL; +} diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h new file mode 100644 index 0000000..b534c77 --- /dev/null +++ b/sound/usb/6fire/control.h @@ -0,0 +1,37 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef USB6FIRE_CONTROL_H +#define USB6FIRE_CONTROL_H + +#include "common.h" + +enum { + CONTROL_MAX_ELEMENTS = 32 +}; + +struct control_runtime { + struct sfire_chip *chip; + + struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS]; + bool opt_coax_switch; + bool line_phono_switch; + u8 master_vol; +}; + +int __devinit usb6fire_control_init(struct sfire_chip *chip); +void usb6fire_control_abort(struct sfire_chip *chip); +void usb6fire_control_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_CONTROL_H */ + diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c new file mode 100644 index 0000000..9081a54 --- /dev/null +++ b/sound/usb/6fire/firmware.c @@ -0,0 +1,426 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Firmware loader + * + * Currently not working for all devices. To be able to use the device + * in linux, it is also possible to let the windows driver upload the firmware. + * For that, start the computer in windows and reboot. + * As long as the device is connected to the power supply, no firmware reload + * needs to be performed. + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include + +#include "firmware.h" +#include "chip.h" + +MODULE_FIRMWARE("6fire/dmx6firel2.ihx"); +MODULE_FIRMWARE("6fire/dmx6fireap.ihx"); +MODULE_FIRMWARE("6fire/dmx6firecf.bin"); + +enum { + FPGA_BUFSIZE = 512, FPGA_EP = 2 +}; + +static const u8 BIT_REVERSE_TABLE[256] = { + 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, + 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, + 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, + 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, + 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, + 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, + 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, + 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, + 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, + 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, + 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, + 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1, + 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, + 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, + 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, + 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, + 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, + 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, + 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b, + 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, + 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, + 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, + 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, + 0xbf, 0x7f, 0xff }; + +/* + * wMaxPacketSize of pcm endpoints. + * keep synced with rates_in_packet_size and rates_out_packet_size in pcm.c + * fpp: frames per isopacket + * + * CAUTION: keep sizeof <= buffer[] in usb6fire_fw_init + */ +static const u8 ep_w_max_packet_size[] = { + 0xe4, 0x00, 0xe4, 0x00, /* alt 1: 228 EP2 and EP6 (7 fpp) */ + 0xa4, 0x01, 0xa4, 0x01, /* alt 2: 420 EP2 and EP6 (13 fpp)*/ + 0x94, 0x01, 0x5c, 0x02 /* alt 3: 404 EP2 and 604 EP6 (25 fpp) */ +}; + +struct ihex_record { + u16 address; + u8 len; + u8 data[256]; + char error; /* true if an error occured parsing this record */ + + u8 max_len; /* maximum record length in whole ihex */ + + /* private */ + const char *txt_data; + unsigned int txt_length; + unsigned int txt_offset; /* current position in txt_data */ +}; + +static u8 usb6fire_fw_ihex_nibble(const u8 n) +{ + if (n >= '0' && n <= '9') + return n - '0'; + else if (n >= 'A' && n <= 'F') + return n - ('A' - 10); + else if (n >= 'a' && n <= 'f') + return n - ('a' - 10); + return 0; +} + +static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc) +{ + u8 val = (usb6fire_fw_ihex_nibble(data[0]) << 4) | + usb6fire_fw_ihex_nibble(data[1]); + *crc += val; + return val; +} + +/* + * returns true if record is available, false otherwise. + * iff an error occured, false will be returned and record->error will be true. + */ +static bool usb6fire_fw_ihex_next_record(struct ihex_record *record) +{ + u8 crc = 0; + u8 type; + int i; + + record->error = false; + + /* find begin of record (marked by a colon) */ + while (record->txt_offset < record->txt_length + && record->txt_data[record->txt_offset] != ':') + record->txt_offset++; + if (record->txt_offset == record->txt_length) + return false; + + /* number of characters needed for len, addr and type entries */ + record->txt_offset++; + if (record->txt_offset + 8 > record->txt_length) { + record->error = true; + return false; + } + + record->len = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + record->address = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc) << 8; + record->txt_offset += 2; + record->address |= usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + type = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + + /* number of characters needed for data and crc entries */ + if (record->txt_offset + 2 * (record->len + 1) > record->txt_length) { + record->error = true; + return false; + } + for (i = 0; i < record->len; i++) { + record->data[i] = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + } + usb6fire_fw_ihex_hex(record->txt_data + record->txt_offset, &crc); + if (crc) { + record->error = true; + return false; + } + + if (type == 1 || !record->len) /* eof */ + return false; + else if (type == 0) + return true; + else { + record->error = true; + return false; + } +} + +static int usb6fire_fw_ihex_init(const struct firmware *fw, + struct ihex_record *record) +{ + record->txt_data = fw->data; + record->txt_length = fw->size; + record->txt_offset = 0; + record->max_len = 0; + /* read all records, if loop ends, record->error indicates, + * whether ihex is valid. */ + while (usb6fire_fw_ihex_next_record(record)) + record->max_len = max(record->len, record->max_len); + if (record->error) + return -EINVAL; + record->txt_offset = 0; + return 0; +} + +static int usb6fire_fw_ezusb_write(struct usb_device *device, + int type, int value, char *data, int len) +{ + int ret; + + ret = usb_control_msg(device, usb_sndctrlpipe(device, 0), type, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, 0, data, len, HZ); + if (ret < 0) + return ret; + else if (ret != len) + return -EIO; + return 0; +} + +static int usb6fire_fw_ezusb_read(struct usb_device *device, + int type, int value, char *data, int len) +{ + int ret = usb_control_msg(device, usb_rcvctrlpipe(device, 0), type, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, + 0, data, len, HZ); + if (ret < 0) + return ret; + else if (ret != len) + return -EIO; + return 0; +} + +static int usb6fire_fw_fpga_write(struct usb_device *device, + char *data, int len) +{ + int actual_len; + int ret; + + ret = usb_bulk_msg(device, usb_sndbulkpipe(device, FPGA_EP), data, len, + &actual_len, HZ); + if (ret < 0) + return ret; + else if (actual_len != len) + return -EIO; + return 0; +} + +static int usb6fire_fw_ezusb_upload( + struct usb_interface *intf, const char *fwname, + unsigned int postaddr, u8 *postdata, unsigned int postlen) +{ + int ret; + u8 data; + struct usb_device *device = interface_to_usbdev(intf); + const struct firmware *fw = 0; + struct ihex_record *rec = kmalloc(sizeof(struct ihex_record), + GFP_KERNEL); + + if (!rec) + return -ENOMEM; + + ret = request_firmware(&fw, fwname, &device->dev); + if (ret < 0) { + kfree(rec); + snd_printk(KERN_ERR PREFIX "error requesting ezusb " + "firmware %s.\n", fwname); + return ret; + } + ret = usb6fire_fw_ihex_init(fw, rec); + if (ret < 0) { + kfree(rec); + snd_printk(KERN_ERR PREFIX "error validating ezusb " + "firmware %s.\n", fwname); + return ret; + } + /* upload firmware image */ + data = 0x01; /* stop ezusb cpu */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1); + if (ret < 0) { + kfree(rec); + release_firmware(fw); + snd_printk(KERN_ERR PREFIX "unable to upload ezusb " + "firmware %s: begin message.\n", fwname); + return ret; + } + + while (usb6fire_fw_ihex_next_record(rec)) { /* write firmware */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, rec->address, + rec->data, rec->len); + if (ret < 0) { + kfree(rec); + release_firmware(fw); + snd_printk(KERN_ERR PREFIX "unable to upload ezusb " + "firmware %s: data urb.\n", fwname); + return ret; + } + } + + release_firmware(fw); + kfree(rec); + if (postdata) { /* write data after firmware has been uploaded */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, postaddr, + postdata, postlen); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "unable to upload ezusb " + "firmware %s: post urb.\n", fwname); + return ret; + } + } + + data = 0x00; /* resume ezusb cpu */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1); + if (ret < 0) { + release_firmware(fw); + snd_printk(KERN_ERR PREFIX "unable to upload ezusb " + "firmware %s: end message.\n", fwname); + return ret; + } + return 0; +} + +static int usb6fire_fw_fpga_upload( + struct usb_interface *intf, const char *fwname) +{ + int ret; + int i; + struct usb_device *device = interface_to_usbdev(intf); + u8 *buffer = kmalloc(FPGA_BUFSIZE, GFP_KERNEL); + const char *c; + const char *end; + const struct firmware *fw; + + if (!buffer) + return -ENOMEM; + + ret = request_firmware(&fw, fwname, &device->dev); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "unable to get fpga firmware %s.\n", + fwname); + kfree(buffer); + return -EIO; + } + + c = fw->data; + end = fw->data + fw->size; + + ret = usb6fire_fw_ezusb_write(device, 8, 0, NULL, 0); + if (ret < 0) { + kfree(buffer); + release_firmware(fw); + snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: " + "begin urb.\n"); + return ret; + } + + while (c != end) { + for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++) + buffer[i] = BIT_REVERSE_TABLE[(u8) *c]; + + ret = usb6fire_fw_fpga_write(device, buffer, i); + if (ret < 0) { + release_firmware(fw); + kfree(buffer); + snd_printk(KERN_ERR PREFIX "unable to upload fpga " + "firmware: fw urb.\n"); + return ret; + } + } + release_firmware(fw); + kfree(buffer); + + ret = usb6fire_fw_ezusb_write(device, 9, 0, NULL, 0); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: " + "end urb.\n"); + return ret; + } + return 0; +} + +int usb6fire_fw_init(struct usb_interface *intf) +{ + int i; + int ret; + struct usb_device *device = interface_to_usbdev(intf); + /* buffer: 8 receiving bytes from device and + * sizeof(EP_W_MAX_PACKET_SIZE) bytes for non-const copy */ + u8 buffer[12]; + + ret = usb6fire_fw_ezusb_read(device, 1, 0, buffer, 8); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "unable to receive device " + "firmware state.\n"); + return ret; + } + if (buffer[0] != 0xeb || buffer[1] != 0xaa || buffer[2] != 0x55 + || buffer[4] != 0x03 || buffer[5] != 0x01 || buffer[7] + != 0x00) { + snd_printk(KERN_ERR PREFIX "unknown device firmware state " + "received from device: "); + for (i = 0; i < 8; i++) + snd_printk("%02x ", buffer[i]); + snd_printk("\n"); + return -EIO; + } + /* do we need fpga loader ezusb firmware? */ + if (buffer[3] == 0x01 && buffer[6] == 0x19) { + ret = usb6fire_fw_ezusb_upload(intf, + "6fire/dmx6firel2.ihx", 0, NULL, 0); + if (ret < 0) + return ret; + return FW_NOT_READY; + } + /* do we need fpga firmware and application ezusb firmware? */ + else if (buffer[3] == 0x02 && buffer[6] == 0x0b) { + ret = usb6fire_fw_fpga_upload(intf, "6fire/dmx6firecf.bin"); + if (ret < 0) + return ret; + memcpy(buffer, ep_w_max_packet_size, + sizeof(ep_w_max_packet_size)); + ret = usb6fire_fw_ezusb_upload(intf, "6fire/dmx6fireap.ihx", + 0x0003, buffer, sizeof(ep_w_max_packet_size)); + if (ret < 0) + return ret; + return FW_NOT_READY; + } + /* all fw loaded? */ + else if (buffer[3] == 0x03 && buffer[6] == 0x0b) + return 0; + /* unknown data? */ + else { + snd_printk(KERN_ERR PREFIX "unknown device firmware state " + "received from device: "); + for (i = 0; i < 8; i++) + snd_printk("%02x ", buffer[i]); + snd_printk("\n"); + return -EIO; + } + return 0; +} + diff --git a/sound/usb/6fire/firmware.h b/sound/usb/6fire/firmware.h new file mode 100644 index 0000000..0085698 --- /dev/null +++ b/sound/usb/6fire/firmware.h @@ -0,0 +1,27 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef USB6FIRE_FIRMWARE_H +#define USB6FIRE_FIRMWARE_H + +#include "common.h" + +enum /* firmware state of device */ +{ + FW_READY = 0, + FW_NOT_READY = 1 +}; + +int __devinit usb6fire_fw_init(struct usb_interface *intf); +#endif /* USB6FIRE_FIRMWARE_H */ + diff --git a/sound/usb/6fire/midi.c b/sound/usb/6fire/midi.c new file mode 100644 index 0000000..13f4509 --- /dev/null +++ b/sound/usb/6fire/midi.c @@ -0,0 +1,203 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Rawmidi driver + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include + +#include "midi.h" +#include "chip.h" +#include "comm.h" + +static void usb6fire_midi_out_handler(struct urb *urb) +{ + struct midi_runtime *rt = urb->context; + int ret; + unsigned long flags; + + spin_lock_irqsave(&rt->out_lock, flags); + + if (rt->out) { + ret = snd_rawmidi_transmit(rt->out, rt->out_buffer + 4, + MIDI_BUFSIZE - 4); + if (ret > 0) { /* more data available, send next packet */ + rt->out_buffer[1] = ret + 2; + rt->out_buffer[3] = rt->out_serial++; + urb->transfer_buffer_length = ret + 4; + + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret < 0) + snd_printk(KERN_ERR PREFIX "midi out urb " + "submit failed: %d\n", ret); + } else /* no more data to transmit */ + rt->out = NULL; + } + spin_unlock_irqrestore(&rt->out_lock, flags); +} + +static void usb6fire_midi_in_received( + struct midi_runtime *rt, u8 *data, int length) +{ + unsigned long flags; + + spin_lock_irqsave(&rt->in_lock, flags); + if (rt->in) + snd_rawmidi_receive(rt->in, data, length); + spin_unlock_irqrestore(&rt->in_lock, flags); +} + +static int usb6fire_midi_out_open(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static int usb6fire_midi_out_close(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static void usb6fire_midi_out_trigger( + struct snd_rawmidi_substream *alsa_sub, int up) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + struct urb *urb = &rt->out_urb; + __s8 ret; + unsigned long flags; + + spin_lock_irqsave(&rt->out_lock, flags); + if (up) { /* start transfer */ + if (rt->out) { /* we are already transmitting so just return */ + spin_unlock_irqrestore(&rt->out_lock, flags); + return; + } + + ret = snd_rawmidi_transmit(alsa_sub, rt->out_buffer + 4, + MIDI_BUFSIZE - 4); + if (ret > 0) { + rt->out_buffer[1] = ret + 2; + rt->out_buffer[3] = rt->out_serial++; + urb->transfer_buffer_length = ret + 4; + + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret < 0) + snd_printk(KERN_ERR PREFIX "midi out urb " + "submit failed: %d\n", ret); + else + rt->out = alsa_sub; + } + } else if (rt->out == alsa_sub) + rt->out = NULL; + spin_unlock_irqrestore(&rt->out_lock, flags); +} + +static void usb6fire_midi_out_drain(struct snd_rawmidi_substream *alsa_sub) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + int retry = 0; + + while (rt->out && retry++ < 100) + msleep(10); +} + +static int usb6fire_midi_in_open(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static int usb6fire_midi_in_close(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static void usb6fire_midi_in_trigger( + struct snd_rawmidi_substream *alsa_sub, int up) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&rt->in_lock, flags); + if (up) + rt->in = alsa_sub; + else + rt->in = NULL; + spin_unlock_irqrestore(&rt->in_lock, flags); +} + +static struct snd_rawmidi_ops out_ops = { + .open = usb6fire_midi_out_open, + .close = usb6fire_midi_out_close, + .trigger = usb6fire_midi_out_trigger, + .drain = usb6fire_midi_out_drain +}; + +static struct snd_rawmidi_ops in_ops = { + .open = usb6fire_midi_in_open, + .close = usb6fire_midi_in_close, + .trigger = usb6fire_midi_in_trigger +}; + +int __devinit usb6fire_midi_init(struct sfire_chip *chip) +{ + int ret; + struct midi_runtime *rt = kzalloc(sizeof(struct midi_runtime), + GFP_KERNEL); + struct comm_runtime *comm_rt = chip->comm; + + if (!rt) + return -ENOMEM; + + rt->chip = chip; + rt->in_received = usb6fire_midi_in_received; + rt->out_buffer[0] = 0x80; /* 'send midi' command */ + rt->out_buffer[1] = 0x00; /* size of data */ + rt->out_buffer[2] = 0x00; /* always 0 */ + spin_lock_init(&rt->in_lock); + spin_lock_init(&rt->out_lock); + + comm_rt->init_urb(comm_rt, &rt->out_urb, rt->out_buffer, rt, + usb6fire_midi_out_handler); + + ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance); + if (ret < 0) { + kfree(rt); + snd_printk(KERN_ERR PREFIX "unable to create midi.\n"); + return ret; + } + rt->instance->private_data = rt; + strcpy(rt->instance->name, "DMX6FireUSB MIDI"); + rt->instance->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_OUTPUT, + &out_ops); + snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_INPUT, + &in_ops); + + chip->midi = rt; + return 0; +} + +void usb6fire_midi_abort(struct sfire_chip *chip) +{ + struct midi_runtime *rt = chip->midi; + + if (rt) + usb_poison_urb(&rt->out_urb); +} + +void usb6fire_midi_destroy(struct sfire_chip *chip) +{ + kfree(chip->midi); + chip->midi = NULL; +} diff --git a/sound/usb/6fire/midi.h b/sound/usb/6fire/midi.h new file mode 100644 index 0000000..97a7bf6 --- /dev/null +++ b/sound/usb/6fire/midi.h @@ -0,0 +1,46 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef USB6FIRE_MIDI_H +#define USB6FIRE_MIDI_H + +#include "common.h" + +enum { + MIDI_BUFSIZE = 64 +}; + +struct midi_runtime { + struct sfire_chip *chip; + struct snd_rawmidi *instance; + + struct snd_rawmidi_substream *in; + char in_active; + + spinlock_t in_lock; + spinlock_t out_lock; + struct snd_rawmidi_substream *out; + struct urb out_urb; + u8 out_serial; /* serial number of out packet */ + u8 out_buffer[MIDI_BUFSIZE]; + int buffer_offset; + + void (*in_received)(struct midi_runtime *rt, u8 *data, int length); +}; + +int __devinit usb6fire_midi_init(struct sfire_chip *chip); +void usb6fire_midi_abort(struct sfire_chip *chip); +void usb6fire_midi_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_MIDI_H */ + diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c new file mode 100644 index 0000000..705c88e --- /dev/null +++ b/sound/usb/6fire/pcm.c @@ -0,0 +1,689 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * PCM driver + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "pcm.h" +#include "chip.h" +#include "comm.h" + +enum { + OUT_N_CHANNELS = 6, IN_N_CHANNELS = 4 +}; + +/* keep next two synced with + * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE */ +static const int rates_in_packet_size[] = { 228, 228, 420, 420, 404, 404 }; +static const int rates_out_packet_size[] = { 228, 228, 420, 420, 604, 604 }; +static const int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000 }; +static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 }; +static const int rates_alsaid[] = { + SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_48000, + SNDRV_PCM_RATE_88200, SNDRV_PCM_RATE_96000, + SNDRV_PCM_RATE_176400, SNDRV_PCM_RATE_192000 }; + +/* values to write to soundcard register for all samplerates */ +static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}; +static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00}; + +enum { /* settings for pcm */ + OUT_EP = 6, IN_EP = 2, MAX_BUFSIZE = 128 * 1024 +}; + +enum { /* pcm streaming states */ + STREAM_DISABLED, /* no pcm streaming */ + STREAM_STARTING, /* pcm streaming requested, waiting to become ready */ + STREAM_RUNNING, /* pcm streaming running */ + STREAM_STOPPING +}; + +enum { /* pcm sample rates (also index into RATES_XXX[]) */ + RATE_44KHZ, + RATE_48KHZ, + RATE_88KHZ, + RATE_96KHZ, + RATE_176KHZ, + RATE_192KHZ +}; + +static const struct snd_pcm_hardware pcm_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH, + + .formats = SNDRV_PCM_FMTBIT_S24_LE, + + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + + .rate_min = 44100, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 0, /* set in pcm_open, depending on capture/playback */ + .buffer_bytes_max = MAX_BUFSIZE, + .period_bytes_min = PCM_N_PACKETS_PER_URB * (PCM_MAX_PACKET_SIZE - 4), + .period_bytes_max = MAX_BUFSIZE, + .periods_min = 2, + .periods_max = 1024 +}; + +static int usb6fire_pcm_set_rate(struct pcm_runtime *rt) +{ + int ret; + struct usb_device *device = rt->chip->dev; + struct comm_runtime *comm_rt = rt->chip->comm; + + if (rt->rate >= ARRAY_SIZE(rates)) + return -EINVAL; + /* disable streaming */ + ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x00); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error stopping streaming while " + "setting samplerate %d.\n", rates[rt->rate]); + return ret; + } + + ret = usb_set_interface(device, 1, rates_altsetting[rt->rate]); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error setting interface " + "altsetting %d for samplerate %d.\n", + rates_altsetting[rt->rate], rates[rt->rate]); + return ret; + } + + /* set soundcard clock */ + ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rt->rate], + rates_6fire_vh[rt->rate]); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + /* enable analog inputs and outputs + * (one bit per stereo-channel) */ + ret = comm_rt->write16(comm_rt, 0x02, 0x02, + (1 << (OUT_N_CHANNELS / 2)) - 1, + (1 << (IN_N_CHANNELS / 2)) - 1); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error initializing analog channels " + "while setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + /* disable digital inputs and outputs */ + ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error initializing digital " + "channels while setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x01); + if (ret < 0) { + snd_printk(KERN_ERR PREFIX "error starting streaming while " + "setting samplerate %d.\n", rates[rt->rate]); + return ret; + } + + rt->in_n_analog = IN_N_CHANNELS; + rt->out_n_analog = OUT_N_CHANNELS; + rt->in_packet_size = rates_in_packet_size[rt->rate]; + rt->out_packet_size = rates_out_packet_size[rt->rate]; + return 0; +} + +static struct pcm_substream *usb6fire_pcm_get_substream( + struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + return &rt->playback; + else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) + return &rt->capture; + snd_printk(KERN_ERR PREFIX "error getting pcm substream slot.\n"); + return NULL; +} + +/* call with stream_mutex locked */ +static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt) +{ + int i; + + if (rt->stream_state != STREAM_DISABLED) { + for (i = 0; i < PCM_N_URBS; i++) { + usb_kill_urb(&rt->in_urbs[i].instance); + usb_kill_urb(&rt->out_urbs[i].instance); + } + rt->stream_state = STREAM_DISABLED; + } +} + +/* call with stream_mutex locked */ +static int usb6fire_pcm_stream_start(struct pcm_runtime *rt) +{ + int ret; + int i; + int k; + struct usb_iso_packet_descriptor *packet; + + if (rt->stream_state == STREAM_DISABLED) { + /* submit our in urbs */ + rt->stream_wait_cond = false; + rt->stream_state = STREAM_STARTING; + for (i = 0; i < PCM_N_URBS; i++) { + for (k = 0; k < PCM_N_PACKETS_PER_URB; k++) { + packet = &rt->in_urbs[i].packets[k]; + packet->offset = k * rt->in_packet_size; + packet->length = rt->in_packet_size; + packet->actual_length = 0; + packet->status = 0; + } + ret = usb_submit_urb(&rt->in_urbs[i].instance, + GFP_ATOMIC); + if (ret) { + usb6fire_pcm_stream_stop(rt); + return ret; + } + } + + /* wait for first out urb to return (sent in in urb handler) */ + wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond, + HZ); + if (rt->stream_wait_cond) + rt->stream_state = STREAM_RUNNING; + else { + usb6fire_pcm_stream_stop(rt); + return -EIO; + } + } + return 0; +} + +/* call with substream locked */ +static void usb6fire_pcm_capture(struct pcm_substream *sub, struct pcm_urb *urb) +{ + int i; + int frame; + int frame_count; + unsigned int total_length = 0; + struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance); + struct snd_pcm_runtime *alsa_rt = sub->instance->runtime; + u32 *src = (u32 *) urb->buffer; + u32 *dest = (u32 *) (alsa_rt->dma_area + sub->dma_off + * (alsa_rt->frame_bits >> 3)); + u32 *dest_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size + * (alsa_rt->frame_bits >> 3)); + int bytes_per_frame = alsa_rt->channels << 2; + + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + /* at least 4 header bytes for valid packet. + * after that: 32 bits per sample for analog channels */ + if (urb->packets[i].actual_length > 4) + frame_count = (urb->packets[i].actual_length - 4) + / (rt->in_n_analog << 2); + else + frame_count = 0; + + src = (u32 *) (urb->buffer + total_length); + src++; /* skip leading 4 bytes of every packet */ + total_length += urb->packets[i].length; + for (frame = 0; frame < frame_count; frame++) { + memcpy(dest, src, bytes_per_frame); + dest += alsa_rt->channels; + src += rt->in_n_analog; + sub->dma_off++; + sub->period_off++; + if (dest == dest_end) { + sub->dma_off = 0; + dest = (u32 *) alsa_rt->dma_area; + } + } + } +} + +/* call with substream locked */ +static void usb6fire_pcm_playback(struct pcm_substream *sub, + struct pcm_urb *urb) +{ + int i; + int frame; + int frame_count; + struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance); + struct snd_pcm_runtime *alsa_rt = sub->instance->runtime; + u32 *src = (u32 *) (alsa_rt->dma_area + sub->dma_off + * (alsa_rt->frame_bits >> 3)); + u32 *src_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size + * (alsa_rt->frame_bits >> 3)); + u32 *dest = (u32 *) urb->buffer; + int bytes_per_frame = alsa_rt->channels << 2; + + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + /* at least 4 header bytes for valid packet. + * after that: 32 bits per sample for analog channels */ + if (urb->packets[i].length > 4) + frame_count = (urb->packets[i].length - 4) + / (rt->out_n_analog << 2); + else + frame_count = 0; + dest++; /* skip leading 4 bytes of every frame */ + for (frame = 0; frame < frame_count; frame++) { + memcpy(dest, src, bytes_per_frame); + src += alsa_rt->channels; + dest += rt->out_n_analog; + sub->dma_off++; + sub->period_off++; + if (src == src_end) { + src = (u32 *) alsa_rt->dma_area; + sub->dma_off = 0; + } + } + } +} + +static void usb6fire_pcm_in_urb_handler(struct urb *usb_urb) +{ + struct pcm_urb *in_urb = usb_urb->context; + struct pcm_urb *out_urb = in_urb->peer; + struct pcm_runtime *rt = in_urb->chip->pcm; + struct pcm_substream *sub; + unsigned long flags; + int total_length = 0; + int frame_count; + int frame; + int channel; + int i; + u8 *dest; + + if (usb_urb->status || rt->panic || rt->stream_state == STREAM_STOPPING) + return; + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) + if (in_urb->packets[i].status) { + rt->panic = true; + return; + } + + if (rt->stream_state == STREAM_DISABLED) { + snd_printk(KERN_ERR PREFIX "internal error: " + "stream disabled in in-urb handler.\n"); + return; + } + + /* receive our capture data */ + sub = &rt->capture; + spin_lock_irqsave(&sub->lock, flags); + if (sub->active) { + usb6fire_pcm_capture(sub, in_urb); + if (sub->period_off >= sub->instance->runtime->period_size) { + sub->period_off %= sub->instance->runtime->period_size; + spin_unlock_irqrestore(&sub->lock, flags); + snd_pcm_period_elapsed(sub->instance); + } else + spin_unlock_irqrestore(&sub->lock, flags); + } else + spin_unlock_irqrestore(&sub->lock, flags); + + /* setup out urb structure */ + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + out_urb->packets[i].offset = total_length; + out_urb->packets[i].length = (in_urb->packets[i].actual_length + - 4) / (rt->in_n_analog << 2) + * (rt->out_n_analog << 2) + 4; + out_urb->packets[i].status = 0; + total_length += out_urb->packets[i].length; + } + memset(out_urb->buffer, 0, total_length); + + /* now send our playback data (if a free out urb was found) */ + sub = &rt->playback; + spin_lock_irqsave(&sub->lock, flags); + if (sub->active) { + usb6fire_pcm_playback(sub, out_urb); + if (sub->period_off >= sub->instance->runtime->period_size) { + sub->period_off %= sub->instance->runtime->period_size; + spin_unlock_irqrestore(&sub->lock, flags); + snd_pcm_period_elapsed(sub->instance); + } else + spin_unlock_irqrestore(&sub->lock, flags); + } else + spin_unlock_irqrestore(&sub->lock, flags); + + /* setup the 4th byte of each sample (0x40 for analog channels) */ + dest = out_urb->buffer; + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) + if (out_urb->packets[i].length >= 4) { + frame_count = (out_urb->packets[i].length - 4) + / (rt->out_n_analog << 2); + *(dest++) = 0xaa; + *(dest++) = 0xaa; + *(dest++) = frame_count; + *(dest++) = 0x00; + for (frame = 0; frame < frame_count; frame++) + for (channel = 0; + channel < rt->out_n_analog; + channel++) { + dest += 3; /* skip sample data */ + *(dest++) = 0x40; + } + } + usb_submit_urb(&out_urb->instance, GFP_ATOMIC); + usb_submit_urb(&in_urb->instance, GFP_ATOMIC); +} + +static void usb6fire_pcm_out_urb_handler(struct urb *usb_urb) +{ + struct pcm_urb *urb = usb_urb->context; + struct pcm_runtime *rt = urb->chip->pcm; + + if (rt->stream_state == STREAM_STARTING) { + rt->stream_wait_cond = true; + wake_up(&rt->stream_wait_queue); + } +} + +static int usb6fire_pcm_open(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = NULL; + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + + if (rt->panic) + return -EPIPE; + + mutex_lock(&rt->stream_mutex); + alsa_rt->hw = pcm_hw; + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (rt->rate >= 0) + alsa_rt->hw.rates = rates_alsaid[rt->rate]; + alsa_rt->hw.channels_max = OUT_N_CHANNELS; + sub = &rt->playback; + } else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) { + if (rt->rate >= 0) + alsa_rt->hw.rates = rates_alsaid[rt->rate]; + alsa_rt->hw.channels_max = IN_N_CHANNELS; + sub = &rt->capture; + } + + if (!sub) { + mutex_unlock(&rt->stream_mutex); + snd_printk(KERN_ERR PREFIX "invalid stream type.\n"); + return -EINVAL; + } + + sub->instance = alsa_sub; + sub->active = false; + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + unsigned long flags; + + if (rt->panic) + return 0; + + mutex_lock(&rt->stream_mutex); + if (sub) { + /* deactivate substream */ + spin_lock_irqsave(&sub->lock, flags); + sub->instance = NULL; + sub->active = false; + spin_unlock_irqrestore(&sub->lock, flags); + + /* all substreams closed? if so, stop streaming */ + if (!rt->playback.instance && !rt->capture.instance) { + usb6fire_pcm_stream_stop(rt); + rt->rate = -1; + } + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_hw_params(struct snd_pcm_substream *alsa_sub, + struct snd_pcm_hw_params *hw_params) +{ + return snd_pcm_lib_malloc_pages(alsa_sub, + params_buffer_bytes(hw_params)); +} + +static int usb6fire_pcm_hw_free(struct snd_pcm_substream *alsa_sub) +{ + return snd_pcm_lib_free_pages(alsa_sub); +} + +static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + int i; + int ret; + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + mutex_lock(&rt->stream_mutex); + sub->dma_off = 0; + sub->period_off = 0; + + if (rt->stream_state == STREAM_DISABLED) { + rt->rate = -1; + for (i = 0; i < ARRAY_SIZE(rates); i++) + if (alsa_rt->rate == rates[i]) { + rt->rate = i; + break; + } + if (rt->rate == -1) { + mutex_unlock(&rt->stream_mutex); + snd_printk("invalid rate %d in prepare.\n", + alsa_rt->rate); + return -EINVAL; + } + + ret = usb6fire_pcm_set_rate(rt); + if (ret) { + mutex_unlock(&rt->stream_mutex); + return ret; + } + ret = usb6fire_pcm_stream_start(rt); + if (ret) { + mutex_unlock(&rt->stream_mutex); + snd_printk(KERN_ERR PREFIX + "could not start pcm stream.\n"); + return ret; + } + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_trigger(struct snd_pcm_substream *alsa_sub, int cmd) +{ + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + unsigned long flags; + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + spin_lock_irqsave(&sub->lock, flags); + sub->active = true; + spin_unlock_irqrestore(&sub->lock, flags); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + spin_lock_irqsave(&sub->lock, flags); + sub->active = false; + spin_unlock_irqrestore(&sub->lock, flags); + return 0; + + default: + return -EINVAL; + } +} + +static snd_pcm_uframes_t usb6fire_pcm_pointer( + struct snd_pcm_substream *alsa_sub) +{ + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + unsigned long flags; + snd_pcm_uframes_t ret; + + if (rt->panic || !sub) + return SNDRV_PCM_STATE_XRUN; + + spin_lock_irqsave(&sub->lock, flags); + ret = sub->dma_off; + spin_unlock_irqrestore(&sub->lock, flags); + return ret; +} + +static struct snd_pcm_ops pcm_ops = { + .open = usb6fire_pcm_open, + .close = usb6fire_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = usb6fire_pcm_hw_params, + .hw_free = usb6fire_pcm_hw_free, + .prepare = usb6fire_pcm_prepare, + .trigger = usb6fire_pcm_trigger, + .pointer = usb6fire_pcm_pointer, +}; + +static void __devinit usb6fire_pcm_init_urb(struct pcm_urb *urb, + struct sfire_chip *chip, bool in, int ep, + void (*handler)(struct urb *)) +{ + urb->chip = chip; + usb_init_urb(&urb->instance); + urb->instance.transfer_buffer = urb->buffer; + urb->instance.transfer_buffer_length = + PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE; + urb->instance.dev = chip->dev; + urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep) + : usb_sndisocpipe(chip->dev, ep); + urb->instance.interval = 1; + urb->instance.transfer_flags = URB_ISO_ASAP; + urb->instance.complete = handler; + urb->instance.context = urb; + urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB; +} + +int __devinit usb6fire_pcm_init(struct sfire_chip *chip) +{ + int i; + int ret; + struct snd_pcm *pcm; + struct pcm_runtime *rt = + kzalloc(sizeof(struct pcm_runtime), GFP_KERNEL); + + if (!rt) + return -ENOMEM; + + rt->chip = chip; + rt->stream_state = STREAM_DISABLED; + rt->rate = -1; + init_waitqueue_head(&rt->stream_wait_queue); + mutex_init(&rt->stream_mutex); + + spin_lock_init(&rt->playback.lock); + spin_lock_init(&rt->capture.lock); + + for (i = 0; i < PCM_N_URBS; i++) { + usb6fire_pcm_init_urb(&rt->in_urbs[i], chip, true, IN_EP, + usb6fire_pcm_in_urb_handler); + usb6fire_pcm_init_urb(&rt->out_urbs[i], chip, false, OUT_EP, + usb6fire_pcm_out_urb_handler); + + rt->in_urbs[i].peer = &rt->out_urbs[i]; + rt->out_urbs[i].peer = &rt->in_urbs[i]; + } + + ret = snd_pcm_new(chip->card, "DMX6FireUSB", 0, 1, 1, &pcm); + if (ret < 0) { + kfree(rt); + snd_printk(KERN_ERR PREFIX "cannot create pcm instance.\n"); + return ret; + } + + pcm->private_data = rt; + strcpy(pcm->name, "DMX 6Fire USB"); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops); + + ret = snd_pcm_lib_preallocate_pages_for_all(pcm, + SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + MAX_BUFSIZE, MAX_BUFSIZE); + if (ret) { + kfree(rt); + snd_printk(KERN_ERR PREFIX + "error preallocating pcm buffers.\n"); + return ret; + } + rt->instance = pcm; + + chip->pcm = rt; + return 0; +} + +void usb6fire_pcm_abort(struct sfire_chip *chip) +{ + struct pcm_runtime *rt = chip->pcm; + int i; + + if (rt) { + rt->panic = true; + + if (rt->playback.instance) + snd_pcm_stop(rt->playback.instance, + SNDRV_PCM_STATE_XRUN); + if (rt->capture.instance) + snd_pcm_stop(rt->capture.instance, + SNDRV_PCM_STATE_XRUN); + + for (i = 0; i < PCM_N_URBS; i++) { + usb_poison_urb(&rt->in_urbs[i].instance); + usb_poison_urb(&rt->out_urbs[i].instance); + } + + } +} + +void usb6fire_pcm_destroy(struct sfire_chip *chip) +{ + kfree(chip->pcm); + chip->pcm = NULL; +} diff --git a/sound/usb/6fire/pcm.h b/sound/usb/6fire/pcm.h new file mode 100644 index 0000000..2bee813 --- /dev/null +++ b/sound/usb/6fire/pcm.h @@ -0,0 +1,76 @@ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Version: 0.3.0 + * Copyright: (C) Torsten Schenk + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef USB6FIRE_PCM_H +#define USB6FIRE_PCM_H + +#include +#include + +#include "common.h" + +enum /* settings for pcm */ +{ + /* maximum of EP_W_MAX_PACKET_SIZE[] (see firmware.c) */ + PCM_N_URBS = 16, PCM_N_PACKETS_PER_URB = 8, PCM_MAX_PACKET_SIZE = 604 +}; + +struct pcm_urb { + struct sfire_chip *chip; + + /* BEGIN DO NOT SEPARATE */ + struct urb instance; + struct usb_iso_packet_descriptor packets[PCM_N_PACKETS_PER_URB]; + /* END DO NOT SEPARATE */ + u8 buffer[PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE]; + + struct pcm_urb *peer; +}; + +struct pcm_substream { + spinlock_t lock; + struct snd_pcm_substream *instance; + + bool active; + + snd_pcm_uframes_t dma_off; /* current position in alsa dma_area */ + snd_pcm_uframes_t period_off; /* current position in current period */ +}; + +struct pcm_runtime { + struct sfire_chip *chip; + struct snd_pcm *instance; + + struct pcm_substream playback; + struct pcm_substream capture; + bool panic; /* if set driver won't do anymore pcm on device */ + + struct pcm_urb in_urbs[PCM_N_URBS]; + struct pcm_urb out_urbs[PCM_N_URBS]; + int in_packet_size; + int out_packet_size; + int in_n_analog; /* number of analog channels soundcard sends */ + int out_n_analog; /* number of analog channels soundcard receives */ + + struct mutex stream_mutex; + u8 stream_state; /* one of STREAM_XXX (pcm.c) */ + u8 rate; /* one of PCM_RATE_XXX */ + wait_queue_head_t stream_wait_queue; + bool stream_wait_cond; +}; + +int __devinit usb6fire_pcm_init(struct sfire_chip *chip); +void usb6fire_pcm_abort(struct sfire_chip *chip); +void usb6fire_pcm_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_PCM_H */ diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index 112984f..0fefdb4 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -97,5 +97,21 @@ config SND_USB_US122L To compile this driver as a module, choose M here: the module will be called snd-usb-us122l. +config SND_USB_6FIRE + tristate "TerraTec DMX 6Fire USB" + depends on EXPERIMENTAL + select FW_LOADER + select SND_RAWMIDI + select SND_PCM + help + Say Y here to include support for TerraTec 6fire DMX USB interface. + + You will need firmware files in order to be able to use the device + after it has been coldstarted. This driver currently does not support + firmware loading for all devices. If you own such a device, + you could start windows and let the windows driver upload + the firmware. As long as you do not unplug your device from power, + it should be usable. + endif # SND_USB diff --git a/sound/usb/Makefile b/sound/usb/Makefile index 1e362bf..cf9ed66 100644 --- a/sound/usb/Makefile +++ b/sound/usb/Makefile @@ -23,4 +23,4 @@ obj-$(CONFIG_SND_USB_UA101) += snd-usbmidi-lib.o obj-$(CONFIG_SND_USB_USX2Y) += snd-usbmidi-lib.o obj-$(CONFIG_SND_USB_US122L) += snd-usbmidi-lib.o -obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ +obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ -- 2.7.4